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Extang Tuff Tonno Tonneau Cover 14445

Product Information
List Price:
Our Price:
4.7 (3 reviews)
Part #:
2014-2018 Chevy Silverado 1500, 5'8" Bed
2014-2018 GMC Sierra 1500, 5'8" Bed


  • Snapless Peel & Seal fastening system
  • Allows for quick access at all four corners of cover
  • Cover can be rolled up and bars removed for hauling large items
  • Short bed features 3 monster bows & a long bed has 4
  • Cover tension can be adjusted by bow height and rear rail tensioner
  • No drill installation with clamps
  • Made in the USA - Ann Arbor, MI

Measure Your Truck Bed for a Tonneau Cover

Does your truck have a track system?

Are you looking to smooth out your truck's performance while adding style and function? Great! The Extang Tuff Tonno is here to assist you in doing that. This amazing tonno gives you unmatched style, improves aerodynamics, and protects expensive tools.

They are made out of durable vinyl that was specially designed to withstand harsh conditions including the sun's harmful UV rays, extremely cold temperatures as well as rain, snow and sleet. The tarp rolls onto 3 or 4 huge spring loaded monster bows that are made durable and will last the test of time.

The Extang Tuff Tonno easily clamps to the bed rails of your truck using the Tuff Klamp system. This truck bed cover is seamlessly shut using the tight fitting seal & peel system, keeping unwanted moisture and debris from harming your truck bed as well as expensive cargo. In addition, the exclusive tail rail helps tighten your tarp to the optimal tension desired.

You get it all when purchasing an Extang Tuff Tonno from RealTruck!

Manufactured by Extang, a Truck Hero company.

More Information

PDF Icon Extang Tuff Tonno Brochure

Order Notes

The cargo management, utili-track, or deck rail system options refer to the factory installed rail system designed to hold moveable cargo cleats along the inside of your truck bed. Please call us for further clarification.

View Available Part Numbers For This Product Line

California Residents: Prop 65 Warning

Frequently Asked Questions

Will they work with bed liners?
Yes, but there are a few simple additional steps that need to take place to make them compatible. If you own an under the rail liner, you need a couple small rubber shims to assist the lifting of the tonneau over the tailgate protector. Over the rail bed liners need to be notched out in order for the tonneau clamps to go through.
Will I be able to open and close my tailgate?
YES, there is no restriction caused by the tonneau.
What can I clean my Tuff Tonno with?
We recommend using soapy water with a medium bristle brush. Extang also makes a tonno cleaner that is ideal for the cleansing process.


Watch This Video
Extang Tuff Tonneau Cover Fast Facts
Watch This Video
Extang Tuff Tonneau Cover Unboxing


Product Reviews Summary

Price / Value
Ease of Installation
3  Customer Reviews
5 Star
4 Star
3 Star
2 Star
1 Star
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The best made
Part #: EXT-14445 Posted on
Was this review helpful?
- 2015 Chevy Silverado 1500 (Penacook, NH)
Price / Value
Ease of Installation
This is my 3rd Extang cover and I could not be happier. The frame is indestructible and the covers are very nice. Makes it easy to roll up and put big stuff in the bed. Came 3 days after I ordered it. Up here in New England, Ive had snow on it that was taller than the cab and no problems. Sure beats shoveling out the bed! I've recommended Extang and especially REALTRUCK to all my friends.
Part #: EXT-14445 Posted on
Was this review helpful?
- 2015 GMC Sierra 1500 (Jacksonville, FL)
Price / Value
Ease of Installation
My third cover from Extang
Part #: EXT-14445 Posted on
Was this review helpful?
- Chevy Silverado 1500 (Anaheim, CA)
Price / Value
Ease of Installation
everything is great about it .. the reason for the one star on the installation is just because I am waiting for 3 month now for a part that came broken out of the package


Limited Lifetime Warranty on Frame / 10 Year Warranty on Vinyl

Lifetime Frame: Extang offers a lifetime warranty against defective materials or workmanship on all tonno rails, aluminum components, clamps, bows, hardware.
10 Year Tarp: Extang offers a 10 year warranty against defective materials or workmanship on the vinyl covering. The 10 year warranty coverage is as follows: 
WARRANTY CONDITIONS: This warranty is against defective materials or workmanship. The warranty is void if the product has been damaged by accident, unreasonable use, neglect, improper service/installation/removal, modifications, acts of God, normal wear and tear, or other causes not arising out of defective materials or workmanship. Consequential and incidental damages are not covered under this warranty.


Extang covers can easily be installed at home. Professional installers generally can install an Extang Cover in 10 minutes. The installation are clear cut and easy to read. For additional information, please see the installation below or call 1-877-216-5446 or 701-253-5906.

Watch This Video
How to Install Extang Tuff Tonneau Cover